Home / 1,232,212.80-1,848,376.80-390,830.40

Finding the Fourth Proportional to 1,232,212.80, 1,848,376.80 and 390,830.40

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Solution

The fourth proportional to 1,232,212.80, 1,848,376.80 and 390,830.40 is: 586,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,212.80 : 1,848,376.80 = 390,830.40 : x
  2. Step 2: Convert to fraction form
    1,232,212.80/1,848,376.80 = 390,830.40/x
  3. Step 3: Cross multiply
    1,232,212.80x = 1,848,376.80 × 390,830.40
  4. Step 4: Simplify right side
    1,232,212.80x = 722,401,844,094.72
  5. Step 5: Solve for x
    x = 722,401,844,094.72/1,232,212.80
  6. Step 6: Final answer
    x = 586,263.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.